document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1120629>Question 1120629</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Ten year ago, John was half of Michael's age. If the ratio of their present ages is 3:4. What will be their total of the present ages? </SPAN>\n" );
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document.write( "(1) The ratio of their current ages is 3:4, so let John's age be 3x and Michael's age be 4x.<br><BR>\n" );
document.write( "It is a typical way to start work on a problem where a ratio is given.<br><BR>\n" );
document.write( "(2) Using 3x and 4x for their current ages, write expressions for their ages 10 years ago.<br><BR>\n" );
document.write( "(3) Write and solve the equation for x that says John's age 10 years ago was half of Michael's age then.<br><BR>\n" );
document.write( "(4) Use the value you find for x to find their current ages, which are 3x and 4x. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );